The History of Non-Euclidian Geometry - The Great Quest - Extra History - #2
Added 2018-06-01 17:31:00 +0000 UTCFor hundreds of years, Euclid's geometry disappeared with the fall of the Roman Empire. But in Constantinople, Islamic mathematicians, including Al-Khwarizmi (who gave us the word "algebra") worked long and hard on proving the Fifth Postulate.
Comments
why was putting irrational numbers on the rational number line so absurd to the greeks? imo \pi is a bad choice as an example of irrational number as it was not known to be irrational at the time, btw the greeks did know how to construct 2^0.5 and move it "onto the number line" through their straightedge and compass constructions so why was this concept so radical?
Hao Sun
2018-07-02 20:23:23 +0000 UTCNot an art error, but a rendering error during editing!
Extra History
2018-06-03 21:48:46 +0000 UTCYou make math fun! :D I did almost all my calculus homework during super hero tabletop role-playing sessions, and had over 100% average for both terms, because I was having fun. You really are helping. :)
Bill Lemmond
2018-06-02 22:16:13 +0000 UTCI LOVED that call-back to the Crusade episodes! I'm glad I'm not the only person who caught it. ;)
Amy Reynolds
2018-06-02 21:52:01 +0000 UTCIsn't that the exact opposite of what they said?
Marc Langlois
2018-06-02 20:25:26 +0000 UTCBack then the Atlantic was dry land and Great Britain was a sea. One of thoses forgotten facts of history brought to you by Extra History.
Marc Langlois
2018-06-02 20:22:33 +0000 UTCAround 1:30 , there is an image of a map which has the region of earth to the far left as shaded in green. Is there a reason for this, or was it just a mapping error?
HiddenHistory
2018-06-02 17:48:19 +0000 UTCthere will be 5!
Extra History
2018-06-02 03:23:01 +0000 UTCIf they had thought me how to do quadratic in Euclidian terms, I might not have flunked math.
Darren Loo
2018-06-02 01:59:42 +0000 UTCPi.
Rossum
2018-06-02 00:22:57 +0000 UTChow many ep"s of non euclidean geometry will there be ?
schuyler
2018-06-01 22:00:21 +0000 UTCWhile you’re ransacking their library you accidentally grab it instead of the sacred texts you really wanted.
Sean Sarff
2018-06-01 21:22:55 +0000 UTCHow do you accidentally steal something from the Vatican archives?
Justin M.
2018-06-01 21:09:47 +0000 UTCIf they haven't, they should!
Jon
2018-06-01 21:07:34 +0000 UTCMinor nitpicks: At 2:13, -pi/2 is displayed on the number line between +1 and +2 (approx +1.3). It should be approx -1.6. At 6:55, the black sea is coloured as land and crimea is coloured as water. Otherwise, good stuff :-)
Jon
2018-06-01 21:02:44 +0000 UTCLol. I see it, too. I guess that Britannia really does rule the waves.
Ethel_Mezezi
2018-06-01 18:20:53 +0000 UTCWhy haven’t you guys made a shirt for “Why let a little blank get in the way of a crusade?”
Sean Sarff
2018-06-01 18:12:20 +0000 UTCWhy is the Atlantic west of Gibraltar dark green at 1:30? And Britain ocean..
Kallikrates
2018-06-01 18:07:48 +0000 UTCThis continues to be super engaging, and the end of the episode continues to come far sooner than I want it to. So, good job, especially to the script writer!
Sientir
2018-06-01 17:56:30 +0000 UTCWith Regard to the last Episode I'd always Assumed that the most Influential Book after the Bible [in Terms of Impact on Human History] had been the Communist Manifesto by Karl Marx but that's probably my Political Bias talking.
Martin Verran
2018-06-01 17:40:05 +0000 UTC
